TS-FT002 Multifunctional Ultrasonic Electronic Water Tank Level Gauge With Indoor Temperature Thermometer Clock Display Water Level Gauge Features: 1. Measuring liquid depth 2. 10-level depth indicator chart 3. Maximumminimum record of liquid surface depth 4. High and low value alarm of liquid level depth 5. Low liquid level alarm 6. Room temperature 7. Ambient temperature of liquid 8. Alarm clock function 9. Can stand on desktop or wall Parameter: 1. Indoor temperature range: 0-60 degrees Celsius 2. The temperature range around the liquid: -40-60 degrees Celsius 3. Temperature accuracy: and-1 degrees Celsius 4. Liquid depth range: 0 - 15m 5. Display accuracy: 0.01m 6. Measurement accuracy: and-0.03M 7. Transmission frequency: 433MHZ 8. Launch range: 100m (open area) 9. Transmitter frequency: send once every 30 seconds when the liquid level changes, and once every 3 minutes when the liquid level does not change 10. Power supply: Receiver: 2xAA batteries (not included); Transmitter: 6XAAA batteries (not included) 11. Battery life: 1 year 12. Size: Receiver: 108X94X27mm; Transmitter: 97X68X152mm 13. Display screen: 66X45mm(3.3 inch) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store